World football governing body FIFA has asked authorities in 2018 World Cup host Russia for "clarification and more details" about a new anti-gay law.
The International Olympic Committee has already asked for clarification about the law and insisted there must be no restrictions on athletes in Sochi next year.
The law bans "propaganda of nontraditional sexual relations" and imposes fines on those holding gay pride rallies. It has caused a major international outcry and spawned calls for protests ahead of the Winter Olympic Games.
"FIFA has asked the Russian authorities for clarification and more details on this new law," FIFA said in a statement Tuesday.
"Russia has committed to provide all visitors and fans with a warm welcome and ensure their safety" during the monthlong tournament, FIFA said, adding that "FIFA trusts that the 2018 FIFA World Cup hosts will deliver on this promise.